EP 1465427 B1 20100609 - Fully scalable encryption for scalable multimedia
Title (en)
Fully scalable encryption for scalable multimedia
Title (de)
Vollständig skalierbare Verschlüsselung von skalierbarem Multimedia
Title (fr)
Cryptographie de taille variable pour multi-média échelonnable
Publication
Application
Priority
US 40597003 A 20030401
Abstract (en)
[origin: EP1465427A1] Subject matter includes exemplary systems and related methods for fully scalable encryption of scalable multimedia. A scalable bitstream encrypted using the subject matter maintains full functionality of scalable features in the encrypted form. The exemplary scalable encryption allows transcoding, rate shaping, and other operations directly on the ciphertext without degradation of scalable compression efficiency and error resiliency. <IMAGE>
IPC 8 full level
G06F 21/10 (2013.01); H04N 7/167 (2006.01); G06F 21/60 (2013.01); G06F 21/62 (2013.01); G09C 1/00 (2006.01); H04L 9/12 (2006.01)
CPC (source: EP KR US)
E03D 9/08 (2013.01 - KR); H04N 7/1675 (2013.01 - EP US); H04N 21/234327 (2013.01 - EP US); H04N 21/23473 (2013.01 - EP US); H04N 21/23476 (2013.01 - EP US); H04N 21/2662 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 1465427 A1 20041006; EP 1465427 B1 20100609; AT E471036 T1 20100615; CN 1535015 A 20041006; CN 1535015 B 20110223; DE 602004027570 D1 20100722; JP 2004310097 A 20041104; JP 4572085 B2 20101027; KR 101046812 B1 20110706; KR 20040088352 A 20041016; US 2004196975 A1 20041007; US 7406176 B2 20080729
DOCDB simple family (application)
EP 04007869 A 20040331; AT 04007869 T 20040331; CN 200410032441 A 20040401; DE 602004027570 T 20040331; JP 2004109417 A 20040401; KR 20040021966 A 20040331; US 40597003 A 20030401